Cooling system



F. T. GOES COOLING SYSTEM Aug. 30, 1932.

Filed Dec.

INVENTOR..

7770M '1 mme ATTORNEY'.

Patented Aug. :30, 1 932 UNITED STATES PATENT OFFICE FREDERIO '1. GOES,OF MILWAUKEE, WISCONSIN, ASSIGNOR TO THE VILTER MANUFAC- TURING-COMPANY, OF MILWA'O'KEE, WISCONSIN, A CORPORATION OF WISCONSIN COOLINGSYSTEM Application filed December 81, 1931. Serial 170. 584,108.

The present invention relates in general to improvements in the art ofconditioning the air in spaces such as rooms, and relates morespecifically to an improved cooling system especially adapted to controlthe atmospheric conditions within relatively small enclosures.

An object of the invention is to provide an improved cooling systemwhich is simple and compact in construction, and which is also highlyefiicient in operation.

In the art of space cooling, it is frequently I desirable to provide forthe periodic conditioning of the atmosphere within relatively smallrooms, and it is moreover extremely desirable to effect such airconditioning at minimum cost. Most apparatuses for this purpose nowresort to mechanical refrigeration means such as circulating arefrigerant to cool the introduced air, which arrangement requires anexpensive installation and the upkeep is expensive, and the expense,therefore, prohibits its use for'the cooling of relatively small roomsfor short periods of time. The present invention overcomes thisobjection by the provision of a cooling system wherein commercial ice isemployed I as the cooling medium rendering the system inexpensive inoperation, especially suitable for the cooling of relatively smallrooms.

A further object of the invention is to provide a cooling system forrooms especially suited for operation for short time periods, andsusceptible of automatic control so that when the room reaches thedesired minimum temperature, the system can be continued in operationeconomically'so as to save the cooling medium.

These and other objects will be apparent from the following detaileddescription.

A clear conception of an embodiment of the invention and of the mode ofconstructing and of operating apparatuses built in accordance therewith,may be had by referring tothe drawing accompanying and forming a part ofthis specification wherein the figure illustrates a schematic view ofthe apparatus.

Referring now more particularly to the drawing it will appear that thenumeral 3 indicates a chamber to be cooled, and said chamher is providedwith vent openings 4 and is entered by an elongated blower conduit orpipe 5 having discharge openings 6 therein. Within an enlargedouter'endportion 8 of said blower conduit 5 is a fan 7. The fan chamber8 is entered by the end portion of an air conduit 9 which extends froman opening 10 in the wall of the building. Said opening 10 is controlledby louvers 11.

Installed within the building in any suitable place and' remote from thechamber or room 3 is an open tank 12 which is divided by a centralvertical partition 15 ,into an ice reservoir 13 and a water reservoir14. The ice reservoir 13 is adapted to contain ice, preferably incrushed form, and extending upwardly into the reservoir 13, through thebottom thereof, are a pair of discharge pipes 16. The portions of saidpipes within the reservoir are perforated and the perforated portionsare screened. The outer ends of said pipes connect with a branch pipe 17which enters an elongated main pipe 18. Within the branch pipe 17 is asolenoid operated direct acting water valve 19. An overflow pipe 20extends from an upper portion of the reservoir 13 through the partition15 into the water reservoir 14 to discharge into said reservoir 14overflow or excess water occasioned by the melting of ice in thereservoir 13. The reservoir 14 is also provided with an overflow pipe 21which extends outwardly of the tank and connects with a discharge oroverflow drain pipe 22. The end of the main pipe 18 enters the bottomportion of the reservoir 14 and communicates with the interior thereof.Flow from said reservoir 14 through the pipe 18 is controlled by asolenoid operated reverse acting water valve 23.

The main pipe 18 extends into the forward end portionof the air conduit9 and branching therefrom, within said conduit, are a pair of spacedspray pipes 24 carrying spray noz-' zles 25. A water pump 26 in anintermediate portion of said main pipe line 18 is adapted to draw waterfrom either the reservoir 13 or the reservoir 14 and to force said waterthrough the spray pipes 24 and nozzles to spray air passing through theair conduit 9, whereby the air is cleansed and cooled. In-

wardly of the spray pipes, within said air conduit, there is another setof louvers 27 through .which the air passes,and on the other side of thespray pipes, after being sprayed, the air passes through an eliminator28 on which is directed a washing spray 29, and also over heating coils30, which may'heat the air provided with spray nozzles 34 directed so asto spray water into-said reservoir 13. There is also extended outwardlysof thetank 31 an overflow pipe 35 which extends to and ter- .minatesabove the reservoir 14 of the tank 12 so as to discharge overflow waterfrom the tank 31 into the reservoir 14. p

A thermostat 36 is located within the chamber 3, and said thermostat, aswell as the elec trically operated valves 19, 23 and 33, is included inan electrical circuit. A suitable arrangement for the electric circuitisshown diagrammatically in the drawing, and it will be evident that thewires of a main electric power line, extending from any suitable sourceof supply, are indicated by the numerals 37 and 38. A wire 39 may extendfrom wire 37 to one terminal of the thermostat 36 and extending from theother terminal of the thermostat is a wire 40 leading to one ter-' minalof the valve 19. A circuit wire 41 extends from the other main'supplywire 39 and connects with the otherterminal of the valve 19. A circuitto the valve'33 is established by wires 42 and 43 which are tapped in onwires 40 and 41 respectively, and a circuit to valve 23 is establishedby wires 44 and 45 which are also tapped in on wires 40 and 41respectively.

The operation of the improved cooling apparatus is as follows: Thethermostat 36 the chamber to be cooled is set for the desiredtemperature and a switch 46 in the electric circuit is closed. Thereservoir 13 of the tank 12 is, bf course, filled with ice, preferablyin crushed form. Initially, valve 19 is open,

as is valve 33, while valve 23 is closed. Water formed within reservoir13 by the melting of the ice will pass through the screened pipes 16'and through the pipe 17 and valve 19 into the main pipe 18. The pump 26in said main pipe, which is of conventional form and driven by anysuitable means, will. force the water of the melting ice through thedischarge nozzles in a duct 9. Air is being driven through said ductfrom the atmosphere by the fan 7 and which is also of'conventional formand driven by any suitable means. Obviously the cold water dischargedwill cool the incoming ain which is then subjected to the I washingspray 29, the eliminator 28,'and the heating coils30. The air is thenintroduced into the chamber. 3 and will lower the temperature therein.Water sprayed through the nozzles 25 will becaught in the tank 31, andas long as the valve 33 is open, saidrela tively cold water will bereturned by the pipe 32 and sprayed into the ice reservoir 13 and thecycle will continue until the chamber 3 .has been cooled to thepredetermined minimum temperature. Upon attainment of the predeterminedminimum temperature, the thermostat 36 will operate to influence .thecircuits to all of the solenoid controlled valves so that valves 19 and33 will close, while valve 23 will, open, The result of this reversal ofthe valves will be that water from the melting ice will first flow intoreservoir 14 through the overflow pipe 20, and then through pipe 18 tobe sprayed in the duct 9. As the valve 33 is closed, the sprayed waterwill collect in the tank,31 and will upon reaching a proper level, bedischarged through pipe 35 and directly back to the water reservoir 14.Obviously,

the air is somewhat warmer than the sprayed water in the first instance,as it does not come directly from the ice, and the air introduced intothe chamber 3 will be somewhat warmer. When the temperature rises insaid chamber when this is taking place, the water spraying to thepredeterminedmaximum temperature,

said thermostat 36 will again operate to influence the valves to resumethe original relationship so that the cooling fluid will again comedirectly from the ice reservoir.

It will thus be seen that the chamber 3 can beautomatically maintainedin a properly cooled condition with fresh clean and cooled air, and theair is cooled by a very simple and inexpensive arrangement. From time totime the cooling fluid will be taken from the water reservoir 14 andthis will result in a material saving of ice, and there will not be aconstant drain thereon. The apparatus is especially. suited for thecooling of rooms and chambers where the cooling period is not i tooprolonged, as for instance for funeral parlors and the like. Theimproved cooling apparatus is furthermore simple and economical, and iswell adapted for the purposes set forth.

What is claimed as the invention is:

1. In combination, an air duct communieating with a cha'mber,a spray.for delivering liquidinto saidv duct. to condition gas passingtherethrough' to, the chamber, an ice reservoir, a water reservoir,means for conducting liquid from either reservoir to the spray fordischarge into the air duct, and

; means for selectively returning the sprayed liquid to eitherreservoir.

2. In combination, an airduct communieating with a chamber, a spray 'fordelivering liquid into said duct to condition gas paming therethrough tothe chamber. an ice tween the ice reservoir and the water reser voir, apipe for. conducting liquid to the spray for discharge into the airduct, said pipe being communicable with both reser- VOlIS, valvescontrolling discharge from both. reservoirs to said pipe, a tank forcollecting the sprayed liquid, means for returning the collected liquidin the tank to either reservoir, valve means controlling the return ofliquid to the desired reservoir, and a thermostat within the chamber andelectrically connected with all of the valves to operate the same.

4. In combination, a duct,-a spray for delivering liquid into said ductto condition gas passing therethrough, an ice storage reservoir, a wateraccumulating reservoir, an overflow connection for conducting, excessliquid from said ice storage reservoir to said water accumulatingreservoir, means for conductin liquid to said spray for discharge intosald duct, valves for interchangeably delivering liquid from saidreservoirs to said conducting means, andmeans for selectively returningsprayed liquid from said duct to either of said reservoirs.

5. Incombination, a duct, spray means for delivering liquid into saidduct to condition gas passing therethrough, an ice storage reservoir, awater accumulating reservoir, '-valve means for controllinginterchangeable delivery of liquid from said reservoirs to said spraymeans, and means for selectively turning sprayed liquid fromsaid duct toeither of said reservoirs. '1 In testimony whereof, I aflix my si ature.

FREDERIG ES.

